Hose-coupling.



- N0- 828,243. PATBNTED AUG. 7, 1906.

J. P. POLMANN.

HOSE COUPLING.

APPLIOATION FILED AUG.12,1905.

WWA/5885s.' /NVENTUH ATTORNEYS o iran s'rAfrEs PATENT OFFICE.

JOHN FREDERICK POLMANN, OF WALLINGTQN, NEW JERSEY.

i HOSE-coupures. i

To all whom it may concern:

Be it known that I, JOHN FREDERICK POL- MANN, a citizen of the United States, and a resident 'of Wallington, in the county of Bergen and State of New Jersey, have invented a new and Improved Hose-Coupling, of which the following is a full, clear, and exact description.

This` invention relates to improvements in couplingsfor hose or pipes, the object being -to provide a theadless coupling so constructd `as to prevent any possible leaking at the joint and to provide for a quick coupling of parts.

I will describe a hose-couplingembodyin my invention and then point out the nove features in the appended claims.

Reference is to be had to the accompanyingdrawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both the views.

Figure 1 shows in plan a coupling embodying my invention, and Fig. 2 is a sectional view thereof.

The coupling comprises an outer casing or member 1, designed to be connected to the end of a hose-section 2, and an inner member 3, designed to be secured to the end of another hose-section 4. This member 3Fis mounted to rotate on a tube 5, to which the hosesection 4 is connected. At opposite sides the outer member 1 has slots 6, terminating in hooks 7, with which lugs 8 on the member. 3 are designed to engage, and When the parts are attached the lugs will be prevented from accidental detachment from the hooks 7 by means of springs 9, attached to said member 1 and pressing against the lugs.

Arranged Within the coupling is a tubular core consisting of an inner section 10 and an outer section 11, the sections having screwthread engagement, and the core-sections engage With the members 3. On the inner end Specification of Letters Patent.

Application filed ugust 12, 1905. Serial No. 278.925.

Patented Aug. '7, 1,906.

of the section 10 is an annular flange 12, andA Having thus described my invention, I i

claim as new andwdesire to secure by Letters Patent- 1. A hose-coupling comprising an outer member or casing, an interlocking inner member, a tubular core arranged Wit-hin said members, and packing-rings at the ends of the core.

2. A hose-coupling comprising an outer member or casing, an inner member for inter-v locking with the outer member, a 'tubular core within sald outer and 4inner members and consistmg of mner and outer sections provided with annular flanges, and a packing clamped between said flanges.

3. A hose-coupling comprising anouter member, an inner member for interlocking with the outer member, a tubular core Within the inner and outer members and consisting of an inner section and an outer section, the said sections having screw-thread engage- ;ment and each section having'atthe inner end an outwardly-extended annular flange, and a packing clamped between said flanges.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

JOHN FREDERICK POLMANN.

Witnesses:

CHRIS. DE KEYSER, CORNELIUS A. BAKER. 

